Question: Who are the characters from the narrative of Sigurd?
Paraphrase: From Sigurd. who are the characters?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q537554 wdt:P1441 ?X . ?X wdt:P674 ?answer}
Answer: Attila, Andvari, Sigurd, Brynhild, Gudrun, Gundomar I, Hagen, Rüdiger von Bechelaren, Volker von Alzey, Gunther, Erda, Alberich, Brünnhilde, Siegfried, Mime, Fafner, Waldvogel (the woodbird), Wotan (disguised as The Wanderer)